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Lower Unit
2.
First, pull up drive shaft by using hand.
Fix shaft B 1 with bladed screw driver, and tighten nut 2
while pushing the shaft. At this time, be careful not to
overtighten the nut, or shaft B is locked.
Tighten nut 2 fully by using fingers, and then, additionally
tighten approximately 90 degrees by using spanner wrench.
During the work, fix shaft B 1 by using bladed screw driver.
Secure clamp halves A 3 and B 4 to shaft B using bolts.
3.
Move clamp A while pushing arm in direction a, and read
dial gauge 5 at notch groove b position.
Proper Backlash Obtained from Gauge Reading :
0.16 - 0.49mm (0.0063 - 0.0193 in)
Sizes of Adjusting Shims :
For Pinion (B) Gear Side : 0.1, 0.15mm
4.
Perform shim adjustment at pinion (B) gear side as
necessary based on the gauge 5 value obtained. The
table shows relation between dial gauge readings and
shim adjustments.
1. Values in this table indicate dial gauge readings
that are obtained when using special tool.
2. C h a n g e g e a r e n g a g e m e n t p o s i t i o n a n d
measure backlash again for check.
6-24
2
2
1
1
5
90°
90°
b
Gauge Reading
mm
0.00 〜 0.15
0.16 〜 0.49
0.50 〜 0.52
0.53 〜 0.59
0.60 〜 0.65
0.65 〜 0.71
0.72 〜 0.77
90°
90°
a
a
4
3
2
1
Shim Adjustment
mm
– 0.10
0
+ 0.25
+ 0.30
+ 0.35
+ 0.40
+ 0.45
4st 4/5/6 2020
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